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https://www.readbyqxmd.com/read/28540933/the-effect-of-high-altitude-on-central-blood-pressure-and-arterial-stiffness
#1
C J Boos, E Vincent, A Mellor, D R Woods, C New, R Cruttenden, M Barlow, M Cooke, K Deighton, P Scott, S Clarke, J O'Hara
Central arterial systolic blood pressure (SBP) and arterial stiffness are known to be better predictors of adverse cardiovascular outcomes than brachial SBP. The effect of progressive high altitude (HA) on these parameters has not been examined. Ninety healthy adults were included. Central BP and the augmentation index (AI) were measured at the level of the brachial artery (Uscom BP(+) device) at <200 m and at 3619, 4600 and 5140 m. The average age of the subjects (70% men) were 32.2±8.7 years. Compared with central arterial pressures, brachial SBP (+8...
May 25, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28538380/acute-effects-of-cinacalcet-on-arterial-stiffness-and-ventricular-function-in-hemodialysis-patients-a-randomized-double-blinded-crossover-study
#2
Aurélie Poulin, Pierre-Luc Bellemare, Catherine Fortier, Fabrice Mac-Way, Simon Desmeules, Karine Marquis, Valérie Gaudreault, Marcel Lebel, Mohsen Agharazii
BACKGROUND: Serum calcium concentration (Ca) plays an essential role in a vascular muscle tone and myocardial contractility. Previously, we showed that acutely lowering Ca by hemodialysis reduced arterial stiffness. Cinacalcet is a calcimimetic that lowers Ca and parathyroid hormone (PTH). The aim of the present study was to examine whether acute lowering of Ca by cinacalcet improves vascular stiffness and myocardial diastolic dysfunction. METHOD: This is a double-blinded randomized placebo-controlled crossover study that included 21 adult patients with end-stage kidney disease undergoing chronic hemodialysis...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28409014/comparable-effect-of-aliskiren-or-a-diuretic-added-on-an-angiotensin-ii-receptor-blocker-on-augmentation-index-in-hypertension-a-multicentre-prospective-randomised-study
#3
Toru Miyoshi, Takashi Murakami, Satoru Sakuragi, Masayuki Doi, Seiji Nanba, Atsushi Mima, Youkou Tominaga, Takafumi Oka, Yutaka Kajikawa, Kazufumi Nakamura, Hiroshi Ito
BACKGROUND: The effects of antihypertensive drug combination therapy on central blood pressure (BP) and augmentation index (AI) have not been fully elucidated. We investigated the effects of the direct renin inhibitor, aliskiren, or a diuretic added to an angiotensin II receptor blocker on AI in patients with essential hypertension. METHODS: A 24-week, prospective, multicentre, randomised, open-label study enrolled 103 patients already treated with valsartan. Participants were randomly allocated to receive either valsartan with aliskiren (V+A), or valsartan with trichlormethiazide (V+T)...
2017: Open Heart
https://www.readbyqxmd.com/read/28405891/renalase-in-children-with-glomerular-kidney-diseases
#4
Piotr Skrzypczyk, Joanna Przychodzień, Małgorzata Mizerska-Wasiak, Elżbieta Kuźma-Mroczkowska, Magdalena Okarska-Napierała, Elżbieta Górska, Anna Stelmaszczyk-Emmel, Urszula Demkow, Małgorzata Pańczyk-Tomaszewska
Studies suggest that renalase, a renal catecholamine-inactivating enzyme, plays a major role in the pathogenesis of kidney and cardiovascular diseases in adults. This study seeks to determine the role of renalase in children with glomerular kidney diseases. We evaluated the serum renalase, arterial stiffness, intima-media thickness, blood pressure, and clinical and biochemical parameters in 78 children (11.9 ± 4.6 years of age) with glomerulopathies such as idiopathic nephrotic syndrome (40 cases), IgA nephropathy (12 cases), Henoch-Schönlein nephropathy (12 cases), and other glomerulopathies (14 cases)...
April 13, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28364031/the-effect-of-acute-maximal-exercise-on-postexercise-hemodynamics-and-central-arterial-stiffness-in-obese-and-normal-weight-individuals
#5
Kanokwan Bunsawat, Sushant M Ranadive, Abbi D Lane-Cordova, Huimin Yan, Rebecca M Kappus, Bo Fernhall, Tracy Baynard
Central arterial stiffness is associated with incident hypertension and negative cardiovascular outcomes. Obese individuals have higher central blood pressure (BP) and central arterial stiffness than their normal-weight counterparts, but it is unclear whether obesity also affects hemodynamics and central arterial stiffness after maximal exercise. We evaluated central hemodynamics and arterial stiffness during recovery from acute maximal aerobic exercise in obese and normal-weight individuals. Forty-six normal-weight and twenty-one obese individuals underwent measurements of central BP and central arterial stiffness at rest and 15 and 30 min following acute maximal exercise...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28256104/haemodynamic-influences-of-bisoprolol-in-hypertensive-middle-aged-men-a-double-blind-randomized-placebo-controlled-cross-over-study
#6
Lauri Suojanen, Antti Haring, Antti Tikkakoski, Jenni K Koskela, Anna M Tahvanainen, Heini Huhtala, Mika Kähönen, Kalle Sipilä, Arttu Eräranta, Jukka T Mustonen, Kari Kivistö, Ilkka H Pörsti
Treatment with beta-blockers appears to show inferior reduction in central versus peripheral blood pressure. We aimed to examine simultaneous changes in central and peripheral blood pressure, vascular resistance, cardiac function and arterial stiffness during beta-blockade. Haemodynamics were investigated after 3 weeks of bisoprolol treatment (5 mg/day) in a double-blind, randomized, placebo-controlled cross-over trial in never-treated 16 Caucasian males with grade I-II primary hypertension using continuous tonometric pulse wave analysis and whole-body impedance cardiography...
March 2, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28250414/relationships-between-urinary-electrolytes-excretion-and-central-hemodynamics-and-arterial-stiffness-in-hypertensive-patients
#7
Weizhong Han, Xiao Han, Ningling Sun, Yunchao Chen, Shiliang Jiang, Min Li
High sodium intake plays an important role in the onset and exacerbation of hypertension. However, the relationships between urinary electrolytes excretion and central hemodynamics and between urinary electrolyte excretion and arterial stiffness are still the subject of debate. This study sought to clarify the associations of salt intake with central aortic pressure and arterial stiffness indicators. A total of 431 untreated hypertensive individuals were recruited into the study. Twenty-four-hour urinary samples were collected to measure the excretion of urinary electrolytes...
March 2, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28197292/chlorthalidone-plus-amiloride-reduces-the-central-systolic-blood-pressure-in-stage-1-hypertension-patients
#8
Leticia Aparecida Barufi Fernandes, Elizabeth do Espirito Santo Cestario, Luciana Neves Cosenso-Martin, Jose Fernando Vilela-Martin, Juan Carlos Yugar-Toledo, Flavio Danni Fuchs
BACKGROUND: Hypertension reduction strategies use blood pressure in the brachial artery as the primary endpoint. Individuals who achieve the target blood pressure reduction with antihypertensive treatment have residual cardiovascular risk attributed to the difference in pressure between the aorta and brachial artery. Antihypertensive treatment affects the intrinsic properties of the vascular wall and arterial stiffness markers and consequently the central pressure. Recent publications stress the importance of adequate control of the central compared to peripheral blood pressure...
December 2016: Cardiology Research
https://www.readbyqxmd.com/read/28105372/association-between-central-blood-pressure-arterial-stiffness-and-mild-cognitive-impairment
#9
R Suleman, R Padwal, P Hamilton, A Senthilselvan, K Alagiakrishnan
BACKGROUND: To determine the relationship between central blood pressure (CBP) indices and mild cognitive impairment (MCI) in adults over the age of 50. METHODS: A cross-sectional study conducted using a non-invasive SphygmoCor XCEL device. CBP indices and brachial blood pressure were measured in 50 inpatients and outpatients. MCI was assessed using the Montreal Cognitive Assessment (MoCA) instrument and by the European Consortium Criteria (ECC). RESULTS: Seventy-six percent of subjects had hypertension, and 52% were diagnosed as having MCI using the ECC...
2017: Clinical Hypertension
https://www.readbyqxmd.com/read/28101819/high-central-aortic-rather-than-brachial-blood-pressure-is-associated-with-carotid-wall-remodeling-and-increased-arterial-stiffness-in-childhood
#10
Gonzalo Peluso, Victoria García-Espinosa, Santiago Curcio, Marco Marota, Juan Castro, Pedro Chiesa, Gustavo Giachetto, Daniel Bia, Yanina Zócalo
INTRODUCTION: In adults, central blood pressure (cBP) is reported to associate target organ damages (TODs) rather than peripheral blood pressure (pBP). However, data regarding the association of pre-clinical TODs with cBP and pBP in pediatric populations are scarce. AIM: To evaluate in children and adolescents the importance of cBP and pBP levels, in terms of their association with hemodynamic and vascular changes. METHODS: 315 subjects [age (mean/range) 12/8-18 years] were included...
March 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28043670/vascular-aging-and-hypertension-implications-for-the-clinical-application-of-central-blood-pressure
#11
REVIEW
Hao-Min Cheng, Sungha Park, Qifang Huang, Satoshi Hoshide, Ji-Guang Wang, Kazuomi Kario, Chang-Gyu Park, Chen-Huan Chen
Vascular aging may be responsible for the high residual lifetime risk for hypertension in the middle-aged and elderly individuals. Increased arterial stiffness and wave reflection has been recognized as the dominant hemodynamic manifestations of vascular aging, and both are major determinants of central blood pressure (BP) and independent predictors for incident hypertension. Because central BP is strongly linearly associated with age, it can be regarded as an integrated marker for vascular aging. Central BP can be measured noninvasively using various techniques, including the convenient cuff-based oscillometric central BP monitors...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28003205/incorporating-freeze-dried-strawberry-powder-into-a-high-fat-meal-does-not-alter-postprandial-vascular-function-or-blood-markers-of-cardiovascular-disease-risk-a-randomized-controlled-trial
#12
Chesney K Richter, Ann C Skulas-Ray, Trent L Gaugler, Joshua D Lambert, David N Proctor, Penny M Kris-Etherton
BACKGROUND: Postprandial dysmetabolism-an exaggerated spike in triglycerides, glucose, and insulin-increases cardiovascular disease risk by inducing oxidative stress, inflammation, and endothelial dysfunction. Polyphenol-rich foods may blunt these effects when they are incorporated into a high-fat, calorie-dense meal. Strawberries are a rich source of polyphenols, but there is little research on their postprandial effects. OBJECTIVE: This study was designed to investigate the effect of adding 40 g freeze-dried strawberry powder (∼1 lb...
February 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27979988/effect-of-acute-aerobic-exercise-and-histamine-receptor-blockade-on-arterial-stiffness-in-african-americans-and-caucasians
#13
Huimin Yan, Sushant M Ranadive, Abbi D Lane-Cordova, Rebecca M Kappus, Michael A Behun, Marc D Cook, Jeffrey A Woods, Kenneth R Wilund, Tracy Baynard, John R Halliwill, Bo Fernhall
African Americans (AA) exhibit exaggerated central blood pressure (BP) and arterial stiffness measured by pulse wave velocity (PWV) in response to an acute bout of maximal exercise compared with Caucasians (CA). However, whether potential racial differences exist in central BP, elastic, or muscular arterial distensibility after submaximal aerobic exercise remains unknown. Histamine receptor activation mediates sustained postexercise hyperemia in CA but the effect on arterial stiffness is unknown. This study sought to determine the effects of an acute bout of aerobic exercise on central BP and arterial stiffness and the role of histamine receptors, in AA and CA...
February 1, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27774104/arterial-stiffness-in-nonhypertensive-type-2-diabetes-patients-in-ghana
#14
Kwame Yeboah, Daniel A Antwi, Ben Gyan
Background. Increased arterial stiffness is an independent cardiovascular risk factor in diabetes patients and general population. However, the contribution of diabetes to arterial stiffness is often masked by coexistent obesity and hypertension. In this study, we assessed arterial stiffness in nonhypertensive, nonobese type 2 diabetes (T2DM) patients in Ghana. Methods. In case-control design, 166 nonhypertensive, nonobese participants, comprising 96 T2DM patients and 70 nondiabetes controls, were recruited...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27754115/os-23-02-the-role-of-complement-c5a-mediated-placental-dysfunction-in-the-onset-of-preeclampsia
#15
Yu Ma, Cheng-Chao Ruan, Yu Zhang, Qian Ge, Qi-Hong Wu, Ling-Ran Kong, Ping-Jin Gao
OBJECTIVE: Women with preeclampsia (PE) display excessive activation of complement system. However, little is known about the detailed cellular and molecular mechanism of complement activation in the development of PE. Here, we hypothesized that whether complement C5a contributes to the onset of PE through its effect on trophoblasts. DESIGN AND METHOD: In this study, 23 women with established PE and 32 normotensive women were recruited. At entry, peripheral and central blood pressure and pulse wave velocity (PWV) were performed...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27643042/os-23-02-the-role-of-complement-c5a-mediated-placental-dysfunction-in-the-onset-of-preeclampsia
#16
Yu Ma, Cheng-Chao Ruan, Yu Zhang, Qian Ge, Qi-Hong Wu, Ling-Ran Kong, Ping-Jin Gao
OBJECTIVE: Women with preeclampsia (PE) display excessive activation of complement system. However, little is known about the detailed cellular and molecular mechanism of complement activation in the development of PE. Here, we hypothesized that whether complement C5a contributes to the onset of PE through its effect on trophoblasts. DESIGN AND METHOD: In this study, 23 women with established PE and 32 normotensive women were recruited. At entry, peripheral and central blood pressure and pulse wave velocity (PWV) were performed...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27612397/assessment-of-arterial-stiffness-in-patients-with-metabolic-syndrome-in-ecuador-a-cross-sectional-study
#17
Carlos A Peñaherrera, Ruben Peñaherrera, Maria C Duarte, Ernesto Peñaherrera
BACKGROUND: Metabolic syndrome increases cardiovascular risk, and causes damage to the vascular wall. Through this mechanism, it might increase arterial rigidity, leading to further complications and heart strain. The use of a device that measures arterial rigidity can help determine if metabolic syndrome is related to a higher vascular stiffness and changes in estimated arterial age. METHODOLOGY: Cross-sectional study at Luis Vernaza hospital of Guayaquil, Ecuador...
September 5, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/27558210/influence-of-low-and-normal-appendicular-lean-mass-on-central-blood-pressure-and-wave-reflection-responses-to-muscle-metaboreflex-activation-in-postmenopausal-women
#18
LETTER
Arturo Figueroa, Stacey Alvarez-Alvarado, Salvador J Jaime, Sarah A Johnson, Jeremiah C Campbell, Rafaela G Feresin, Marcus L Elam, Negin Navaei, Shirin Pourafshar, Bahram H Arjmandi
Sarcopenia, defined by reduced appendicular skeletal muscle mass (ASM)/height(2) (ASMI), is associated with increased arterial stiffness (brachial-ankle pulse wave velocity, baPWV) and wave reflection (augmentation index, AIx). Blood pressure (BP) responses to metaboreflex activation (post-exercise muscle ischemia, PEMI) are exaggerated in older prehypertensives and hypertensives. We examined peripheral and aortic haemodynamics at rest and during PEMI in postmenopausal women with low-ASMI and normal-ASMI. Resting radial AIx and baPWV as well as brachial and aortic systolic BP, pulse pressure, systolic time index, and subendocardial viability ratio (SEVR) responses to PEMI were greater in women with low-ASMI than normal-ASMI...
December 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27528063/dietary-flaxseed-reduces-central-aortic-blood-pressure-without-cardiac-involvement-but-through-changes-in-plasma-oxylipins
#19
Stephanie P B Caligiuri, Delfin Rodriguez-Leyva, Harold M Aukema, Amir Ravandi, Wendy Weighell, Randolph Guzman, Grant N Pierce
UNLABELLED: In the year-long FlaxPAD clinical trial (Flaxseed for Peripheral Artery Disease), dietary flaxseed generated a powerful reduction in brachial systolic and diastolic blood pressure in patients with peripheral artery disease. Oxylipins were implicated as potential mechanistic mediators. However, the ability of flaxseed to impact central aortic hypertension, arterial stiffness, or cardiac performance was not investigated. Additionally, the relationship between central blood pressure (cBP) and oxylipins was not elucidated...
October 2016: Hypertension
https://www.readbyqxmd.com/read/27509187/the-effect-of-high-dose-cholecalciferol-on-arterial-stiffness-and-peripheral-and-central-blood-pressure-in-healthy-humans-a-randomized-controlled-trial
#20
Iain Bressendorff, Lisbet Brandi, Morten Schou, Birgitte Nygaard, Niels Erik Frandsen, Knud Rasmussen, Lars Ødum, Ove Vyff Østergaard, Ditte Hansen
BACKGROUND: Low levels of serum 25-hydroxy vitamin D are associated with increased arterial stiffness and hypertension. Supplementation with vitamin D precursors has been proposed as a treatment option for these conditions. We examined the effect of oral cholecalciferol on arterial stiffness and blood pressure in healthy normotensive adults. METHODS: 40 healthy adults were randomised in this double-blinded study to either oral cholecalciferol 3000 IU/day or matching placebo and were followed for 16 weeks to examine any effects on pulse wave velocity (PWV), augmentation index (AIx), peripheral and central blood pressure and 24-hour ambulatory blood pressure...
2016: PloS One
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